JPH0339809B2 - - Google Patents

Description

[Detailed description of the invention] 【Technical field】

The present invention relates to a washbowl, particularly to a mold for a washbowl integrated with an artificial marble-like counter.

[Background technology]

Figure 2 shows conventional molds, including a front mold (lower mold) 1 for forming the recesses on the counter surface and the surface of the wash bowl, and a back mold (upper mold) for forming the back surface of the counter and the wash bowl. When molding, first a gel coat made of polyester resin is sprayed onto the mold 1 and cured, and then calcium carbonate powder, silica sand, or aluminum hydroxide powder is applied to the polyester resin. Pour the mixed compound 4 onto the top mold 1 to the extent that it does not overflow, then set the back mold 2 and pour the remaining compound 4 through the opening 24 formed in the back mold 2 for forming a drainage port. After that, a rubber stopper 5 was attached to the opening, and the compound 4 was cured naturally or by heating. However, in actual work, it is common to adjust the gelation time of the compound to about 30 minutes.
Due to the high viscosity of the compound, it is difficult to complete injection through the opening of the back mold within this time.
Even if it were possible to inject it, it was difficult for air to escape near the opening, which often resulted in cavities and defects.

[Purpose of the invention]

The present invention has been made in view of these points, and its purpose is to shorten the compound injection time, reduce costs, and prevent the formation of cavities. We provide molds for washbasin bowls.

[Disclosure of the invention]

Therefore, the present invention provides a front mold for forming a recessed part on the surface of a washbasin bowl, a first back mold for forming a peripheral back surface of a washbowl, and a second back mold for forming a peripheral part of a drain port on the backside of a washbowl. and the second mold for the first back mold.
It is characterized by the fact that the back mold is removable, and the compound injection work is carried out twice: when only the first back mold is set on the front mold, and when the second back mold is also set. It was designed so that it could be done in separate parts. The present invention will be described in detail below based on the illustrated embodiment. The mold here includes a front mold 1 and a first back mold 2.
1, and a second back mold 22. The front mold 1 is for forming the recessed part on the surface of the wash bowl and the surface of the counter that is integrated with the wash bowl, and the first back mold 21 is for forming the back surface of the circumference of the wash bowl and the back surface of the counter. The second back mold 22 is for forming the peripheral part of the drain hole on the back surface of the washbasin bowl, and is
The back mold 21 is removable, and the second back mold 22 is also removable from the first back mold 21. The second back mold 22 has an opening 24 for inserting a rubber stopper 5 for injecting the compound 4 and forming a drainage port. When molding, a gel coat is first applied by spraying to the surface of the lower mold 1, as in the conventional example, and then cured. After that, as shown in FIG. 1a, about half of the compound 4 is poured into the front mold 1, and then, as shown in FIG. 1b, only the first back mold 21 is set on the front mold 1. fixed,
The compound 4 is poured into the first back mold 21 through the large opening 23 which is the mounting portion of the second back mold 22 . After that, as shown in Figure 1c,
After fixing the second back mold 22 to the first back mold 21 and further pouring the compound 4 through the opening 24 of the second back mold 22, insert a rubber plug into the opening 24 as shown in FIG. is inserted, and then the compound 4 is cured naturally or by heating. After curing, the first and second back molds 21 and 22 are removed, and the molded product in which the washing bowl and counter are integrally formed is made into the front mold 1.
Cut out the mold. When injecting compound 4, first
Since only the back mold 21 is set and the compound 4 can be poured at any time through the large opening 23 in the first back mold 21 for mounting the second back mold 22, the time required for pouring the compound 4 can be reduced. This can significantly shorten the time, and since it is only necessary to inject a small amount of compound 4 after setting the second back mold 22 in the vicinity of the drain outlet. This completely eliminates the occurrence of cavities.

【Effect of the invention】

As described above, in the present invention, the back mold is divided into a first back mold for forming the periphery of the washbasin bowl and a second back mold for forming the periphery of the drain port, and these are both removable. In order to ensure that the compound is injected first, the second
This can be done with only the first back mold, which has a large opening for mounting the back mold, set, which greatly reduces the time required for compound injection, and what is more, it can be done after setting the second back mold. Only a small amount of the compound needs to be injected, and since the compound can also be placed on the attachment part of the second back mold when injecting the compound with only the first back mold set, it is possible to keep air near the drain port of the washing bowl. There is no possibility that cavities will be formed due to incomplete removal, and the occurrence of defective products will be greatly reduced.In addition to shortening the injection time, it will also be possible to significantly reduce costs.

[Brief explanation of drawings]

FIGS. 1a, b, c, and d are cross-sectional views showing the molding procedure using the mold according to the present invention, and FIG. 2 is a cross-sectional view of a conventional example, in which 1 is a table mold, 4 is a compound, and 5
21 indicates a rubber stopper, 21 indicates a first back mold, and 22 indicates a second back mold.

Claims (1)

[Claims] 1 Consists of a front mold for forming a recess on the surface of the wash bowl, a first back mold for forming the peripheral back surface of the wash bowl, a second back mold for forming the area around the drain port on the back of the wash bowl, A mold for a washing bowl, characterized in that a second back mold is detachable from a first back mold.